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Steps in a 5K, 10K, Half Marathon and Marathon
Estimate event steps from your measured walking or running step length.
For the reverse conversion, our distance-to-steps tool.
Enter your values
Estimate based on the entered values. Accuracy and limitations
How to use this calculator
- Enter the quantities in the units printed on each field.
- Use your own measured step length whenever a step length is requested.
- Read the calculated result, then change an input to compare a different scenario.
Formula and calculation method
Steps = event distance in km × 100,000 ÷ measured step cm.
1 mile = 1,609.344 m; 1 foot = 0.3048 m; 1 inch = 2.54 cm. Steps are rounded to whole counts; other displayed values normally use two decimal places.
Reference table
| Event | Distance (km) | Steps at 75 cm | Steps at 100 cm |
|---|---|---|---|
| 5K | 5 | 6667 | 5000 |
| 10K | 10 | 13333 | 10000 |
| Half marathon | 21.0975 | 28130 | 21098 |
| Marathon | 42.195 | 56260 | 42195 |
Worked example
A 5K at 75 cm per step is approximately 6,667 steps.
Accuracy and limitations
Measure walking and running separately. Fatigue and pace can change your step length during an event.
Methodology, Sources and Limits · Report a calculation issue
Questions about this tool
Which units should I enter?
Use the units on each label. Multiply inches by 2.54 for centimetres, pounds by 0.45359237 for kilograms, and miles by 1.609344 for kilometres.
How should I interpret the result?
Measure walking and running separately. Fatigue and pace can change your step length during an event.
Try the main calculator
Convert miles or kilometres into steps with your measured step length or a rough walking estimate.
Open the Miles to Steps CalculatorRelated calculators
Learn more: How Accurate Are Phone and Watch Step Counters?.